Cloudbyte

7 hours ago, yithar7153 said:

 

Something I do on linux is I add "pci=realloc" in order for my eGPU to work. I'm guessing it fixes the memory allocation or something. I'm not sure what bootloader you use but I use GRUB so you just have to edit /boot/grub/grub.cfg. On this laptop with Ubuntu installed, the line to modify is "linux    /vmlinuz-3.18.7 root=/dev/mapper/ubuntu--vg-root ro  splash tpm_tis.interrupts=0 i915.i915_enable_fbc=1 $vt_handoff"

I'm using grub2. I tried this with a live linux (arch) on the HP, and still wasn't detected by lspci.

However, I found out in linux, that powering on the card before hotpluggin it gave me a few errors:

[12900.711389] pciehp 0000:00:1c.1:pcie04: Card present on Slot(1)
[12903.314393] pciehp 0000:00:1c.1:pcie04: link training error: status 0x1001
[12903.316363] pciehp 0000:00:1c.1:pcie04: Failed to check link status

This is the first time I get a reaction on the HP laptop.

I googled a bit, and the second line "link training error: status 0x1001" is related to being unable to hotswap pci-e devices.

So, I'm sloooowly making progress, at least I managed to obtain a reaction to the PE4C from the HP Elitebook 8440p.

I'm now convinced the PE4C is probably ok, but the laptops' expresscard slots may be missconfigured or something.

Getting closer.... won't give up.

I also attach some screens from Setup 1.3 on the HP Elitebook 8440p

Here the egpu isn't detected.

Do anyone have any sugestion for this?

I'm not giving up on this yet.

eGPU: PE4C v3.0 ExpressCard

Cards: GT800, GTX 560ti

Power: Dell DA-2 Power brick

Laptops: HP EliteBook 8440p, Lenovo Thinkpad T60

I put out another laptop to test, this one a Thinkpad T60

I finally got a reaction!, not the one I expected, but is a small progress.

This laptop has Arch Linux, will put windows on it to try.

I connected the egpu, plugged it to power, then turn on the laptop

The egpu didn't power on (card fans were off), and it didn't show with lspci

I force powered it, the card started spinning full force, and I got dmesg output on the laptop, this:

[  175.960967] pciehp 0000:00:1c.2:pcie04: Card present on Slot(4)
[  178.563357] pciehp 0000:00:1c.2:pcie04: Link Training Error occurs
[  178.566501] pciehp 0000:00:1c.2:pcie04: Failed to check link status

SO, unlike the HP Elitebook 8440p, I'm finally getting at least something that shows that the egpu isn't completely dead.

So I turned the laptop and the egpu off. Then changed PERST switch to 9.8 secs delay, turn on the egpu, then the laptop

On the initialization I got some stuff on the dmesg output, here:

[    0.174742] pci 0000:00:1c.2: [8086:27d4] type 01 class 0x060400
[    0.174869] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
[    0.174933] pci 0000:00:1c.2: System wakeup disabled by ACPI
.
.
.
[    0.196886] pci 0000:00:1c.2: PCI bridge to [bus 04-0b]
[    0.196893] pci 0000:00:1c.2:   bridge window [io  0x6000-0x7fff]
[    0.196899] pci 0000:00:1c.2:   bridge window [mem 0xe8000000-0xe9ffffff]
[    0.196908] pci 0000:00:1c.2:   bridge window [mem 0xe4100000-0xe41fffff 64bit pref]
.
.
.
[    0.253156] pci 0000:00:1c.2:   PCI bridge to [bus 04-0b]
[    0.253161] pci 0000:00:1c.2:   bridge window [io  0x6000-0x7fff]
[    0.253168] pci 0000:00:1c.2:   bridge window [mem 0xe8000000-0xe9ffffff]
[    0.253174] pci 0000:00:1c.2:   bridge window [mem 0xe4100000-0xe41fffff 64bit pref]
.
.
.
[    0.372070] pcieport 0000:00:1c.2: Signaling PME through PCIe PME interrupt
[    0.372076] pcie_pme 0000:00:1c.2:pcie01: service driver pcie_pme loaded
.
.
.
[    0.372322] pciehp 0000:00:1c.2:pcie04: Slot #4 AttnBtn- AttnInd- PwrInd- PwrCtrl- MRL- Interlock- NoCompl- LLActRep+
[    0.372355] pciehp 0000:00:1c.2:pcie04: service driver pciehp loaded

But still didn't show on lspci

I'll put window to this laptop, and maybe setup 1.3 to keep testing, but at least I know the PE4C is not completely dead.

Maybe it is indeed damaged, but on the HP I never got any reaction that showed the PE4C was detected, not in windows (10) nor in linux.

@Tech Inferno Fan Could I have an opinion on these readings? I'm pretty competent on software, but not on hardware...

Well, I have tried with Setup 1.3 and the card isn't detected.

I have tried with different SW1 and SW2 postions, nothing detected.

I have disabled all but the one PCI port that expresscard uses (I had plugged a usb3 expansión card on the express card slot and worked) and the egpu is not detected

My model is an PE4C v3.0, tried with bot the Dell D220P and an ATX 450W PSU

Cards tested: GT 8800, GTX 560ti, GTX 750ti, all work on their own.

On the board, the D1 LED (CLKRUN) is always red while the express card is plugged.

The board never powers up on it's own, if I short the "force power on" pins on the board,

the card powers on and the fans rotate at full speed, but it isn't detected

When powered up, the D2 and D3 LEDS (3.3v and 12v) are Green, and  D4(PERST)  is red

I'm already out of options. I cannot return the PE4C V3.0, but I think it may have been defective.

I have tried on three laptops (all HP, different models) with the same symptoms.

Any other suggestion?

On miércoles, 10 de febrero de 2016 at 1:09 AM, aldimeola81 said:

the card must run by himself without switch, i have the same adaptor, same power supply and no problem with my lenovo t530 and other several computer, be sure to connect the external 8pin connector to pe4c base

maybe you got a faulty pe4c or faulty dell adapter.. try with a standard atx supply for first, and watch if there are any changes, bye.

 

 

I have tried several combinations of switches to no avail, the egpu isn't detected. I'll try with setup 1.3 to see if I can get any kind of response from the PE4C, I cannot return it now as it is over a month that I got it, so I hope this works. 

2 hours ago, aldimeola81 said:

 

Have you tried to check over express card configuration over bios? The two switch must set at zero delay (DX) for be recognized on boot.

If the fans start to rotate slow, the card is recognized, if start spinning at full speed, doesn't, be sure of connect the external supply on 3d card directly also, bye.

Inviato dal mio Lenovo P70-A utilizzando Tapatalk

I have checked for Expresscard options in bios, no useful options found.

I have the Dell D220P AC adapter for it, but the card doesn't seem to turn on (the fan remains dead)

If I connect the expresscard, I get a the PERST led turn on dimly.

If I force the powerup of the card by shorting the jumper, the card powers on, the fan spins, the 12v and 3v leds turn green and the CLK led turns brightly red, but the PERST one remains dim.

In any case nothing gets detected on the device manager (Windows 10)

I'll try with both switches on the default position (1) before turning on the laptop, don't remember if I tried that way.

Hotpluging the card doesn't work, nothing gets detected.

Should the CLK and or the PERST leds turn green at any point?, or is normal they're red?

Will the card turn on on its own when detected or I'll always have to force the power up via the board pins when using Dell D220P AC adapter?

I have tried on several laptops (all HP, but different models), in none the board gets detected.

I have tried 2 video cards GTX560ti and GTX750ti and none gets detected. The cards work on their own on desktop computers.

Maybe I'm doing something wrong....

Hi

I'm looking for help,

My system

HP Elitebook 8440p

Core i5 520m

8Gb ram

PE4C V3.0 ExpressCard

ZOTAC GTX 750Ti

Dell D-2 power supply.

Here's a pic of my device manager (for TOLUD)

And a pic of the leds on the PE4C V3.0, the two at the edges are red, and the two in the middle are green.

The fan of the card starts working, but apart from that, I get nothing.

No matter the combination on switches on the PE4C, the laptop doesn't detect anything. Device manager doesn't

move at all. Tried on Linux with dmesg, and I didn't detect any change on expresscard insertion.

Any suggestions?

Thanks in advance